Hi guys, i am moving to a new address that's served by optimum online. For TV, i want to get the cheapest package (just basic channels + their HD counterparts).
The prime mover for flexion of the shoulder muscles used are the following: 1  Pectoralis Major Clavicle. 2  Anterior Deltoid. 3  Biceps Brachii Short Head. 4  Coracobrachialis.
View image. The rhomboid muscles in your upper back connect the inner edges of your shoulder blades to your spine. A rhomboid strain is a stretch or tear of these muscles. A rhomboid spasm is a sudden tightening of the muscle that you cannot control. A rhomboid muscle strain or spasm is usually caused by overuse of your shoulder and arm.